This is a bad take. We didn't write the model, we wrote an algorithm that searches the space of models that conform to some high level constraints as specified by the stacked transformer architecture. But stacked transformers are a very general computational paradigm. The training aspect converges the parameters to a specific model that well reproduces the training data. But the computational circuits the model picks out are discovered, not programmed. The emergent structures realize new computational dynamics that we are mostly blind to. We are not the programmers of these models, rather we are their incubators.

As far as sentience is concerned, we can't say they aren't sentient because we don't know the computational structures these models realize, nor do we know the computational structures required for sentience.